Strip-severing machine.



No. 841,834. PATENTED JAN. 22, 1907. 0. A. WBBBBR.

STRIP SEVBRING MACHINE. APPLIOATION'IILEI) MAR. 21, 1906.

3 SHEETS-SHEET 1.

' amw/wtoz Witneowo y Ua/rman A. Wel ber PATENTED JAN. 22, 1907.

0. A. WEBBER. STRIP SEVERING MACHINE.

APPLICATION FILED MAR. 21, 1906.

3 SHEETS SH EET 2.

Smwmtoz oa/fman 14. Weber M flaw 1 91 tmeoom No. 841,834. PATENTED JAN. 22, 1907. 0. A.-WEBBER.

STRIP SEVERING MACHINE.

APPLICATION FILED MAR. 21, 1906.

3 SHEETS-SHEET 3.

74 I smmwtoz Oak/11a )4. Webber 1 UNITED STATES ENT "OFFI E.

' OAKMAN A. 'WEBBER, or MANGHESTERNEW' HAMPSHIRE.

STlRlP-SEVERING MACHINE.

To allwhom it may concern.-

Be it known thatl, OAKMAN A. WEBBER, a citizen of the Uniteii States, residingat Manchester, in the county of Hillsboro and State of New Ham shire, have invented certain new and usefullmprovements in Stri -.Severing Machines; and I do hereby dec' are the following/to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to which it appertains to make and use the same. i

This invention relates to an improve'dmachine for cutting or severing into redetermined lengths ta e, ribbon, and the lfii, a feature of the mac ine being a means whereby the parts are readily adjusted to vary the throw and obtain different lengths of the material by-the feeding. and severing operations, which are accomplished automatically. Another feature of the machine is a means by which the movements of the feeding mechanism and severing mechanism are timed relativ'e to each other. Another feature of the machine is a tape, ribbon, or the like cementing and folding attachment operating to cement and fold the material pressure, to cause the folds to proper y adhere eing obtained by the rolls employed to feed the folded material to the severing means.

These and other features ofthe invention are'set forth in detail in the following description, in connection with which reference is to be had to the accompanying drawings, illustrating the! invention in its preferred form of embodiment, it being understood that various modifications may be made therein without departing from the scope bf the concluding claims.

Fig. 2 is an elevation of-the opposite sideof the maehine. Fig. 3' is 'a rear elevation. Fig. 4 is a front elevation of the upper portion of the machine. Figs. 5 and 6 are detail Referring to the drawings by numerals, 1

re resents the table-of the machine supporte upon a base-frame consisting of a pair of legs 2 3, cast, preferably, integrally with up 1 per and lower connecting-braces, the upper race being secured to one side flange 4 of Specification of Letters Patent.'

previous to the'severing o eration,

In the drawings, Figure '1 is a side eleva-- tion of a machine embodying the invention.

Patented Jan. 22, 1907.

Application filed March 21, 1906. Serial No. 307,290.

-the table and, the lower brace 5 being integral with said legs toward their lower ends and of a le 6, secured at its upper end to the other side ange 7 of the table and connected toward its lower end with the brace 5 by a cross-brace 8. The legs 2 3 are provided with feet having holes whereby they may be secured to asuitable support, and -9 is the foot of the leg 6, from which is erected a standard 10, terminating in a bearing 11 for a drive-shaft 12, which is also journaled in bearings 13 14,respectively, provided in the leg 6 and on anextension 15 of the brace 5.. On one end of the shaft 12 are fixed and loose pulleys or sheaves 16 17, the pulley or sheave 16 having belt connection with a source of power. (Not shown.) On the other end of the shaft 12 is ahead 18, entering-an elongated. recess 19, provided .in anadjustable eccentric 20-, the adjustment to vary the throw of the latter being obtainedby turning .a screw 21 in-the eccentric against the head.

18. Set-screws 22 23, .asslng through a slot 24 in the eccentric an entering the head, serve to maintain the eccentric in any adjusted position relative to the axis of the shaft. I

Extending laterally from the lower brace 5 is a pm 25; on which is pivoted and confined by nuts 26 27 an arm 28,'having a slot re- 'ceiving the eccentric, wherebyv a rocking movement is imparted to the arm by the rotative movement of the eccentric. ously the throw of the arm and extent-of movement of the'parts operated by the latter is determined by the adjusted position of the eccentric. At the'upper end of the arm 28 Obviis a curved rack or sector 29, meshing with a pinion 30', loose on the shaft 31, 'ournaled in hearings in the side flanges o the table. Fixed on the shaft .31 is a lower feed-roll 32, having at one end teeth 33, meshing with teeth 34 at one end of an upper and companion feed-roll 35, said rolls cooperating to feed forward'the strip of material ,as will presentliy be more fully explained. The upper fee roll is fixed on a shafty36, the ends of which enter slots in bearings 37 37, erected from the table, and 38 38 are springs fastened at one end tothe table and bearing at their other .end on the shaft ends, whereby topressthe upper roll against the lower roll, as will be understood.

The rolls are intermittently rotated in a direction to feed forwardly the stripsbypawland-ratchet means, the construction-of which will now be described. Fixed to or integral with the pinions 30 is a housing 39, in which are pivoted a plurality of pawls 3O 30preferably four in numb erequipped with springs 31", acting to press them against the teeth of a ratchet-wheel 32 fixed on the shaft 31, the pawls being confined in the housing by a plate 33*, fastened by screws against the outer face of the housing. The engaging ends orpoints of the pawls by the locations of the lattertend Lo minimize lost motion in the feeding movement of the rolls.

By reference to Fig. 5 it will be observed that the points of the 'pawls are by their relative positions brought successively into en'- gagement with a tooth-shoulder, said points being spaced apart to obtain each engagement in a movement equal, for example, to one-fifth of the distance between two of the teeth. v

Izz operation the shaft 12 and eccentric 20 are constantly rotated, and the arm 28 is rocked to rotate the pinion and housing alternately in opposite directions. In the clockwise movement of the pinion the pawls ride over the ratchet-Wheel, whereas in the reverse movement the engagement of a pawl with the ratchet-wheelefi'ects the rotation of the rolls to feed the strip forward, reverse rotation of the rolls being prevented by the employment of a brake 34, consisting of two arms 35 35-, secured at one end to the tablefiange 7 by a screw 36 and hearing at their other recessed ends against the shaft 31, the requisite brakepressu re being obtained by the employment of a bolt 37", passed throughboth arms, and a tightening-nut 38.

The mechanism for severing the strips into predetermined lengths consists of a stationary blade 39*, secured to the rear end of the ta le by a screw 40 and bolt 41. The bolt 41 also serves as the pivot for the movable blade 42, which is held in cutting relation to the blade39 by nuts 43 on the bolt and an interposed spring washer 44. Severing movement of the blade is obtained after each feeding movement of the rolls by a cam 45, fixed on the shaft 12, which cam engages and depresses an arm 46, pivoted at one end by a screw 47 in a bracket 48 on the foot 9 and connected at its other end with the free end of the blade 42 by a rod 49. The retracting movements of the arm 46 and blade 42 are obtained b the action of a coiled spring. 50, interposed etween the arm and the foot 9.

The strip is fed between the rolls at the front end of the machine, and to properly direct the strip a guide 51 is provided, which consists of a plate having a slot 52, through which is passed a set-screw 53, whereby the plate is laterally adjustable to guide the strip to any desired point between the rolls. plateghas a guide-opening 54 for the strip.

There is shown in connection with the above-described parts strip cementing and The folding means, whereby vamp-stays and the like are presented to the cuttting means for obtaining predetermined lengths. The strip material is supplied, preferably, from a roll 55, properly tensioned by a weight 56, and in its traverse to the feeding and cutting mechanism the strip contacts at its under side with a cement-applying roll 57, mounted in brackets 58 and rotating in cement contained in a receptacle 59. The roll 57 is rotated by belt connection with a sheave 60, fixed on the shaft 12. The strip after receiving the cement coating passes through a folding device 61, secured by a screw62 on the table in front of the'rolls. In passing between the rolls the foldsof the strip are flattened and are caused to closely adhere to the body portion of the strip, and thus the rolls have the double function of finishing and feeding the folded strips to the'severing mechanism.

I claim j 1. In a strip-severing machine, the combination with strip-severing means, of a pair of strip-feeding rolls, one of said rolls being mounted in-open bearings and a spring for holding said last-urentioned roll in contact with'the other roll, gears carried by the rolls and adapted to intermesh, a shaft on which one of said rolls is mounted, a ratchet-wheel fixed to'said shaft, a pinlon loose on said shaft and carrying a pawl inengagement with said ratchet in one direction'of rotation of the pinion, a pivoted arm carrying a curved segment meshing with said pinion, a drive-shaft, an eccentric adjustably connected to said driveshaft and means for adjusting the eccentric on the drive-shaft whereby its throw may be varied, a slot in said pivoted arm into which said eccentric extends, an arm pivoted to the frame and connected to said severing means, and a cam on the drive-shaft for operating said arm.

2. In eombinationwith an intermittentlyoperated strip-severing means, a pair of geared-together strip-feeding rolls, a shaft fixed to one of said rolls, a pinion loose on the shaft, pawland-ratchet means between the pinion and shaft to rotate the rolls'in one direction of rotation of the pinion, a pivoted arm carrying a curved segment meshing with said pinion, a drive-shaft, an eccentric on said drive-shaft and adapted to engage a slot formed in the arm, an elongated recess formed in the eccentric, a head formed on the drive shaft and set-screws entering the elongated recess to engage the head whereby the eccentric may be adjusted and held in adjustable position. Y V

In testimony whereof I afli-x my signature in presence of two witnesses.

OAKMAN A. WEBBER.

Witnesses DAVID W. PERKINS, THOMAS F. THORPE. 

